Solved

Simple Question

WAwashinator
Asked over 7 years ago 1,481 views
0

Hi, I've never had a washing machine before and I'm about to get a new one delivered and I just have one question that no one on the internet seems to be answering....I understand that I must connect the water pipe inlet connection to the tap and then turn the tap to the 'On' position, but when my washing machine is turned off and the washing machine stops water from entering, where does all that water go from the tap that is still in 'On' position? ( I know some people turn it off preventing leaks but I'm asking what stops that flow of water from the tap in 'On' position in the first instance - how does it work? What stops usage of water when the washing machine is off but tap is On, because when I turn the unconnected tap on, the water comes gushing out ? Where does all that gushing out water go, how does it stop my water bill from being astronomical? Does the washing machine somehow create pressure to send the water back up to Thames Water when the washing machine is off or how does it work?)

Solution Summary

AI-generated from this discussion

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Water supply remains under pressure when washing machine is off

The problem
The user asked how water is stopped when the inlet tap is left on but the washing machine is switched off, and whether water continues flowing or is sent back into the mains.
Likely cause
No appliance fault was reported. The accepted explanation was that the washing machine's water inlet valve remains closed, so the incoming mains water has nowhere to go and simply stays under pressure in the hose/valve.
What fixed it
No repair was needed. The accepted advice was that the closed inlet valve stops water flow when the machine is off. It was also advised that the supply tap can be turned off after use, if practical, to reduce flood risk if the fill hose leaks or bursts.
Checks to try
  • Accepted reply states the water valve is closed when the machine is off
  • Accepted reply warns that a leaking or burst fill hose could cause flooding if the tap is left on
Parts or tools mentioned
  • water inlet valve
  • fill hose
  • supply tap

Safety: It was advised that turning off the water tap after use, if practical, helps reduce the risk of flooding from a leaking or burst fill hose.

Cause identifiedGenerated 9 Aug 2026 · AI summaries can make mistakes — read the full thread below.
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1 Answer

Accepted Answer
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WH
WhitegoodshelpVerified Engineer
Answered over 7 years ago

The water valve is just closed so water can't go anywhere and remains under pressure. That's why if the fill hose leaks or bursts you would have a big flood and so it's wise to turn off the taps after use if practical.

Whitegoods Help — appliance repair expert and forum host.

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